Charge money for synagogue entrance ?

As a Jew visiting Prague I was dissapointed to see many historical churches are free to visit but they change about $30 USD to enter historic synagogues. I don’t think is a good look. I’m pretty secular, but it also feels biblically wrong to charge money for entrance. What’s next - proselytization ? Hint - we Jews are not supposed to do that either. Optics are important.